add openhack files

support/simulator/DeviceSim/Interfaces/ILogger.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace DeviceSim.Interfaces
+{
+    public interface ILogger
+    {
+        void WriteMessage(LogLevel level, string message);
+        void Report(Exception exception, LogCategory category);
+    }
+    
+    public enum LogLevel
+    {
+        CRITICAL = 0,
+        ERROR = 1,
+        WARNING = 2,
+        INFO = 3,
+        VERBOSE = 4
+    }
+
+    public enum LogCategory
+    {
+        CONFIGERROR = 0,
+        SQLERROR = 1 ,
+        APIERROR =2
+    }
+
+}